## NORMAL

### Normal

In geometry, a**normal**is an object such as a line or vector that is perpendicular to a given object. For example, in the two-dimensional case, the

**normal line**to a curve at a given point is the line perpendicular to the tangent line to the curve at the point.

*The above text is a snippet from Wikipedia: Normal (geometry)*

and as such is available under the Creative Commons Attribution/Share-Alike License.

and as such is available under the Creative Commons Attribution/Share-Alike License.

### normal

#### Noun

- A line or vector that is perpendicular to another line, surface, or plane.
- A person who is normal, who fits into mainstream society, as opposed to those who live alternative lifestyles.

#### Adjective

- According to norms or rules.
- Usual; ordinary.
- Healthy; not sick or ill.
- Pertaining to a school to teach teachers how to teach.
- Of, relating to, or being a solution containing one equivalent weight of solute per litre of solution.
- Describing a straight chain isomer of an aliphatic hydrocarbon, or an aliphatic compound in which a substituent is in the 1- position of such a hydrocarbon.
- (
*Of a mode in an oscillating system*) In which all parts of an object vibrate at the same frequency; See . - Perpendicular to a tangent line or derivative of a surface in Euclidean space.
- (Of a subgroup) whose cosets form a group.
- (Of a field extension of a field K) which is the splitting field of a family of polynomials in K.
- (Of a distribution) which has a very specific bell curve shape.
- (Of a family of continuous functions) which is pre-compact.
- (Of a function from the ordinals to the ordinals) which is strictly monotonically increasing and continuous with respect to the order topology.
- (Of a matrix) which commutes with its conjugate transpose.
- (Of a Hilbert space operator) which commutes with its adjoint.
- (Of an epimorphism) which is the cokernel of some morphism.
- (Of a monomorphism) which is the kernel of some morphism.
- (Of a morphism) which is a normal epimorphism or a normal monomorphism.
- (Of a category) in which every monomorphism is normal.
- (Of a real number) whose digits, in any base representation, enjoy a uniform distribution.
- (Of a topology) in which disjoint closed sets can be separated by disjoint neighborhoods.
- in the default position, set for the most frequently used route.

*The above text is a snippet from Wiktionary: normal*

and as such is available under the Creative Commons Attribution/Share-Alike License.

and as such is available under the Creative Commons Attribution/Share-Alike License.